Door guard



Jan, 1

H. ERNST DOOR GUARD F1ed Sept. 11, 1922 INVENTEIR HENRY ERNST.

Fatented Jan. Z, l925.

UNITED STATES HENRY ERNST, OF

neon GUARD.

Applcaton filed September T aZ 107mm z't anag concern.

Be it known thet I, HENRY ERNST, a eitizen of the United States, residing at (heego, in the county of C00l end State of lllinois, have invented a certain new nnd useful Door (mard, of which the following is a speeificaiion.

This invention relates to irnprovements in door gnards of the type commonly nsed in eonjnnetion with ordinary door locks fo1 bnrglerprotection to prevent the door from being opened in the event the look has been pieked breken, re1noved or otherwise rende1ed ineilective end edapted to permit of a partial opening of the door Lis a precautionnry ineasure, without unloeking the same 'to such en extent as to enable the entrance of en intrnder.

The principal object of the invention is to provide 21 door gnard of the type referred to whieh is arranged to serve as a 1neans whereby the door may be moved to end held securely in any 0ne 01: a plurality of per tially open positions for the pur-pose of pro- "iding ventilation for the room into which the door leads.

A more speeifie object of the invention is to provide a door gnard of the type einploying a hinged strap vvith a bolt movable in u. slot in the strap, the strap heving notches or soekets at intervals the length thereof into vvhieh i pin or other means provided for the pnrpose may be entered selectively to hold the door in a pertially open position t0 which it has been set.

Still anothe1 object is to provide 21 door guurd which is adapted to sewe in any one of three cnpaeities; either to look the door in a closed position, 01 to serve in conjunction With the ordinery door look end permit only a limited opening in the event the look has been rendered inefikective, or to held the door in nny one of a. plurality of partielly open positions t0 which it has been set to if0id \"81112l121111011 to the room into which the door leeds.

The foregoing and other objeets of the invention Will appear in the following detailed description.

Referring to the drawing illustrating the inxention, Fignre 1 is a diagrznnrnatie de teil in seetion illustreting 1ny iinproved door gue1d applied to a door betxveen it and its ensing, showing the door loeked in apar tielly opened position the extremity of fl h nge S flP s- 2 is i"etelloekng 11, 1922. Seral ITo. 587,265.

at the beek of the casing on the door end showing the strap in section with the locking pin engaged the1ein. Fig. 3 is e transverse section of the casing taken on the line 33 01: Fig. 2 looking in the direetion indeated by the nrrows. Fig. 1 is en elev etional view looking at the back of a portion otf the hinged strap, end Fig. 5 is a view similar te Fig. 2 but showing e 1nodified form of locking pin.

Throughout the views the sen1e 01 si1nilar numerals are applied t0 corresponding parts.

The device of the present invention is designed particularly for nse in hotels or other places where it is desired to set a door in a partially opened position t0 aford ventilation to a. room without too greatly increasing the hazard of burglars. It is inended to be used principally where a transom 01 the like is not provided, or where such is provided but is of snch 21 type that the hazard of burglars wonld be t00 greatly enheneed if the same vvere to be opened. In any event the device is adapted to serve as a door guard for burglar proteetion and is 'used in conjunetion with the other ordinary look provided for the door.

Deviees of the type 130 whieh the present invention applies commonly comprise a slotted strap hinged to a plate 11. In the hinge connection I prefer to provide plein pins 12 which are held in plece in a novel 1nanner to be presently described. The plete 11 is astened securely by screws 13 or in any other suiteble 1nanner, to the side of the door casing 1 1 in front of the jamb 15 and 1nav be set in a recess provided therefor to eiord elearence for the door 16. The plate 11 herein is shown 21s being made of a piece of sheet 1netal bent over upon itself to provide pairs of spaced eylindrical ears 17 to receive the pins 12. The ears 17 have small lngs 01 berbs 17 thereon whieh, rvhen the pins 12 hwe been assembled in the ears 17, are bent overes shown in Fig. 1 to hol d the pins in plece. A. preferred manner of thus bendng these lngs 17 is by means of the dies e1nployed in he final shaping operetion. In this operati0n the strap, having been con1pleted is 1sse1nbled With the partially eo1npleted plete, withthe pins 12 in position in the ears 17, the arrangement being sueh that as the dies arebrought together the lngs are -forced downwardly over the ends of the pins In this the assembling op-;

of the door.

erations are OlOVOLIS1) made more si1nple than where rivet pins are used. The plate 11 is preferably provided With struck-up lngs 01" bosses 18 to engage a shonlder at 19 in the side of the door casing to position the strop sqnarely with reference to the casing when it is being fastened. The strap has a slot 20 extending longitudinally thereof thus bifnrcating tl1e strap to form parallel lege 10 10. Thelatter 1nay be spread before the strap is assembled on the plate 11 so that when it is assembled a drug is placed on the swinging n10ve1nent there- 01 by virtue of its frietional engagement with tlie ears 17 (see Fig. 1). bolt 21 is arranged to 1110V0 in the slot 20 and is rigidly 1nounted in the casing 22.

The letter is festened loy serews 23 or the like to the door 16 at the edge thereof. The plate 11 may be cut away at 24 to a'd1nit the head of the bolt 21 When the door is closed. The strap 10 a1so is cut ewa y on opposite sidesof the slot 20 as at 25, to facilitate the entry of the bolt 21 into the slot With tbe head thereof on the onter side of the strap 10 when the door is opened, as, for exaanple, by a burglar who has sneceeded in rendering the look on the door ineifective in some way. The door nnder such circumstances may be opened partially only to olie extent permitted by the length of the slot 20 and in that event the opening is so small that 2L persen could not possibly enter and is ordinarily so restricted that nothing conld= very well be projectedinto tlie room to fsli articles iherefrom.

A thinnb pieee such as th-at shown at 26 is com1nonly provided in conneetionwith door gnards of tlie type herein shown and is used for locking tl1e door in a cl0sed position. When the door is closed tl1e strap 10 is swung over in front of it over the piece 26 wlrich, when turned at rig-ht angles to the slot 20, serves io prevent tlie opening The edges 27 of the thu1nb piece 26 are preferzvbly conformed to present a wedge face to the front of the casing 22 so that When the thun1b piece is turned in the slot 20 the strap 10 is Wedged in between the piece 26 and the front of the ea=sing 22 and in this way is held quite seoureljn Most of tl1e foregoing features aie com- 1non in door guaids 'at present aveilable an d of conrse no i1wention is elairned therein, excepting only in so far as tliey coo-perate as a part of the novel oombination herein disclosed.

'lhe strop 10 at intervals tl1e length of the slot 20, is notched as shown at 28, fonr notches being illstrated provided on opposite sides of the slot 20. Adapted to eooporate with these notehes is 1 pin 29 preferabl;y of a generally Usliape, 1110V21blij,

A headed 1nounted in the casing 22 (see Fig. and having the bent portion 30 thereof projecting from the inner end of the casing te be gripped by the ingers for movement into and out of engagement With the notches 28. 'll1e free ends of the legs of the pin 29 are offset so that slight bnmps 31 are prodnced near the bend 30 Wlll('il serve to limit tlle extent of outward movement of the pin as it is withdrnwn 'rom engagement in (he notcl1es in tl1o strop 10. i\lso \\ithdmwul 0' tl1e pin from the cusing is prevented thereby. The ofiset ends of tlie legs of 1110 pin 29 are irst spread apart and then, in order to be entered through the oponings 82 in the end wulls of the casing 22, must be forced together in en obvious nmnner. The legs of the pin tending to spread after insertion into the eusing produce considerable frietion with the sides of the openings in the casing 22 as wil] be apparent. This friction serves to prevent the pin fron1 being dislodged fro1n engagement in the notches 28 in the event the door is uttempt ed te be 0pened or mores slightly be uuse of. a draft. It Will appear that When the bolt 21 IS projected into the the slot 20 by opening the door partially, this is of conrse HSSUII i-ng that the strap 10 has beforehand been swung townrd the door into operative position, the pin 29 may be moved out so that the two ends thereof are entered into any one of the sets of notches 28, as desired, to provide uny desired degreo of opening of the door within, of course, tl1elimits aflorded by tl1e length of the slot 20. Thus in the present case there are four possible positions of opening to whieh the door may be set. 'lhe advantage of the arrangement is appnrent. The door when set in any one of the positions of partial opening \\"ll not, because of t draft, move open any iarther nor will it close because the pin us above deseribed eflectually l1olds die door in position and cannot readily be withdrawn by a persen lrom Hw outside of the door. 01, even ussuming that the pin l1as nfter considerable tlll pering been withdrawn, the door could still not be opened beuuse the bolt 21 wou=ld perform its usual function. t is therefore upparent that the degree. oi burglar hazard is not enhzrnced very much when the door is thns set in u pnrtizrliy open position, end of conrsothe hazard 1n-ay be mini1nized even more by setting the pin at the first 0r second set of notvlws. In F ig.- 5 I have shown a modified form of locking pin at 29" which is arranged so that only one end thereof may be engaged in notches in the strap 10. WVith this form it is of eourse necessary only to pro- \ide notel1os on one side of the slot 20 of: the strap 10. This pin similarly tothe pin 29 l1as u bent portion 30 whereby it is 1nanipulated and is offset at the end to lorin t lnnnp 31 to prevent its withdrawal from the casing. This pin likewise frio tionnlly engages the casing after insertion und in that way is held in adjusted position.

The device is 1nanifestlv capable of modifioaton in certain details tlrereof without departing 1naterially from the general spirit of tl1e invention. Tl1e appended claims aie intended to co"er all legitimate modifications end udaptations of the invention whieh would occu1 to one skilled in ll1is art.

l claim us iny invention:

l. Tl1e combination with a door and a cusing, of u door guard co1nprising a slotted stmp hinged to tbe casing for pivotal n1ove1nent into and out o operative relation with respect to thedoo1, u casing li::ed to the door to move lelatie to sid strzrp, a headed bolt carried by said casing with the headed end arranged to project toward said strap, said bolt being adapted to 1nove in the slot in said strap with the slmnk thereof engaged in the slot, said strnp having a notoh foiined intermedate the length of said slot on one side thereof and a pin carried by said casing slidable relative to said bolt alongside the sllank thereof into said notch.

2. The co1nbination with a door and a casing, of 21 door gua1d comprising a. member fixed to said casing and having EL slot extending lengthwise tl1ereof, L member fixed to the door and having 2 head projecting therefrom arranged to operate in said slot to per1nit partial opening of the door. said slotted n1e1nber having sockets for'1ned inter1nediate tbe length of sad slot on the sides thereof, and a pin adapted for 1nove1nent seleotively into any one of snid so :l ets accordingly as it is desi1ed to Vary tl1e degree to wl1ch the door is opened.

3. The combination with {L door and 1 easng, of a door guard comprising an elongated nie1nber on said oasing lnwing a slot extending.lengthwise thereof, aheaded men1ber on said door adapted in the movement of said door to operate in said slot, said slotted 1ne1nber hzwng sockets or1ned nter1nediate the length of said slot on the sides tbereof, and a pin 1novable selectively into anv one of said sockets.

4. Tbe combination With u door and a casing of a door guard comprising an elongatecl 1nen1ber having a slot extending longitudinally thereof, L headed member adapted to operate in said slot, said slotted member haming sockets formed intermediate the lengtl1 of said slot on the sides thereof, a pin mov able selectively into any one of said soekets, and means to cooperate with sad pin to hold tbe sa1ne in operatix e position.

5 The combination with a swingflble closure, of 1neans 'or selectively holding tl1e same in any one of a number of positions of opening co1nprising an elongated slotted men1ber, a easing movable relatii e thereto,

a headed bolt in said casing 1novable in the closnre of 1neans for seleotively holding tbe sa1ne in any one of a number of positions of opening c01npr1s1ng an elongated slotted 1nember, a casing movable relative thereto,

a headed bolt in said casing 1novable in the slotin said Ine1nber, said member hawing openings on the side of the slot therein, and a U-shaped pin slidable in said oasing to engage an end thereof in one of said openings, said pin having a leg tl1ereof spread outwardly before insertion into said casing to spring against the side of the opening provided in said casing to reoeiVe the same when inserted therein whereby to provide frictional resistanoe to Inovement of said pin in said casing in operation and a hu1nped portion on said pin to prevent withdrawal of said pin f1om sad oasing.

7. In 21 door guard tl1e combination of plate a11anged to be fastened to the door casing, and L strap hingedly connected to said plate and having a portion thereof airanged to ser"e as a li1nit-ing stop for the door to prevent more than a certain degree of opening of the door. said hinge oonnec tion comprising aligned apertured ears on said plate and strap, a pin entered in tbe apertures of seid ears, and barbs in said enrs at opposite ends of said pin arranged to be bent o"er to hold said pin in place.

8. The combination with u door and 2 door oasing, of a door guard comprising a lever swingably 1nonnted on the oasing, said lex er having a longitudinally extending slot terminating short of its oute1 end, and a plu rality of spaced sockets opening into said slot, a bolt mounted on tlie door adapted to operate in said slot whereby only a limited opening of the door is p-er1nitted, a pin mounted on the door and slidable seleotively into any one of said soekets, and 1neans t0 cooperate with said pin to ho1d the same in operative position.

9. The combination with a door and a door casing, of a door guard comprising a le"er swingablymounted 011 the casing, said lever having a longitudinally extending slot terminting short of its outer end, and a pair of oppositely positioned sookets openng int said slot, & casng member fixedly mounted 011 the door relatve to said lever, a headecl bolt carried by said member aclapted to operate in sad slot Whereby only a limtedppening of the door is permitted, and a U-sha ped pin mountecl in saicl member ancl sliclable into said sockets t0 lld the door aganst movement.

10. The Combinafioh with & door and a door casing, of 2 door guzud comprising a lever swngably mounted on the casing, said lever havng a longitudinally extenclingslot terminatng short of its outer encl a nd a plurality of pairs of oppositely positioned. sockets opening into said slot, a casing mem bei fizedly m.ounted 011 the door relativeto sa=icl lever, a heacled belt carrecl by said member adapted t0 operate with its headecl end in said slot, a U-shapecl pin slidzvbly meuntecl insaid member and projecting through openings in the end W&lls of said anember With the legs of the pin in frictional engageinent wth the corresponding wall oftthe member, sal pin beingn1ovable selectively into any one of sad pairs of sockets t0 hold the door against movement.

11. The combination with a casing of a plate secured t0 sad casing, and a stmp hingedly connected t0 said plate, said hinge connect1on comprising alined apertu1ed enrs on sad plate and strap, a pin enteied in the apertures of said ea1s and barbs in said ears at opposite ends of said pin arranged to bebent 0x er t0 h0ld said pin in alace.

12. The combnation wit-h a 001 and door casing, of 21 door gnard comprising u lever swingably mounted on the casing, said lever having a longitudinally extending slot; telminating short of ts 0uter end, a bolt mounted 0n said door adapted t0 operate in said slot whereby only a limited movement of the door is permtted, a in mounted on saicl door and slidable int0 sa1d slot t0 enguge the latter in any one of a plurality of positions, and means t0 cooperate with said pin to held the same in operative position.

In testimony whereof, I have hereunto affixed my signature.

HENRY ERNST. 

